Question juridique clé
Whether the sellers had standing to pursue collection of one-half of the purchase price separately.
Solution extraite
The sellers were entitled as pro rata co-creditors to assert each half of the unpaid purchase price individually.
Motifs extraits
For a divisible monetary claim arising from a joint contract, the default is partial co-creditorship, not joint creditor status. Selling the property as a whole did not create a gesamthand relationship or joint entitlement to the price claim.